Surface Area of a Cylinder

Find the surface area of a cylinder with radius $3$ and height $5$. Use π ≈ $3.14$.

• 1Two circular ends: $2$ × π × $3^2=2\times 3.14\times 9=56.52$
• 2Curved surface: $2$ × π × $3\times 5=2\times 3.14\times 15=94.2$
• 3Add: $56.52+94.2$

Answer: $150.72$

Find the surface area of a cylinder with radius $4$ and height $6$. Use π ≈ $3.14$.

• 1Two circular ends: $2\times 3.14\times 16=100.48$
• 2Curved surface: $2\times 3.14\times 4\times 6=150.72$
• 3Add: $100.48+150.72$

Answer: $251.2$